Protect your hot water system with a planned annual service. Our preventative maintenance helps identify potential problems early, maintain your equipment and reduce the risk of unexpected breakdowns.
Your solar water heating system or heat pump works throughout the year to provide your property with reliable hot water. Like any other mechanical and plumbing system, it requires regular maintenance to keep it operating safely, efficiently and reliably.
At GreaseFlow Solar Water Heating, we provide professional annual maintenance for solar geysers, solar water heating systems and heat pumps across Cape Town.
Our preventative maintenance service is designed to identify potential problems early, maintain the condition of your equipment, reduce the risk of unexpected breakdowns and help extend the working life of your hot water system.
Whether you have a residential solar geyser, a split solar system, a roof-mounted system, a domestic heat pump or a larger hot water installation, our team can assess your system and recommend the appropriate maintenance.
Why it matters
Solar geysers and heat pumps are exposed to different operating conditions throughout the year. Sunlight, weather, water quality, corrosion, mineral deposits, worn components and normal mechanical use can affect their performance over time. Without regular inspections, minor issues may go unnoticed until they cause a leak, loss of hot water or an expensive repair.
Annual preventative maintenance helps you stay ahead of these problems.
Solar geyser servicing
Solar geysers use energy from the sun to heat water. Depending on the installation, the system may use a roof-mounted close-coupled collector, a split thermosyphon arrangement or a pumped circulation system. Each configuration has different components and maintenance requirements.
At GreaseFlow Solar, we assess the type of solar water heating system installed at your property and carry out the appropriate preventative maintenance.
The geyser tank is one of the most important parts of the hot water system. During maintenance, our technician inspects accessible areas of the tank and associated connections for signs of leakage, corrosion, deterioration or other visible problems. Where the tank shows signs of serious deterioration, we will explain the findings and recommend the appropriate next steps.
The sacrificial anode helps protect the inside of the tank against corrosion by corroding preferentially to the tank's protected metal surfaces. Over time, the anode is consumed and may eventually lose its ability to provide adequate protection. Our maintenance recommendation is to replace the sacrificial anode during each annual service where the geyser is designed to use a replaceable anode and the replacement is appropriate for its condition and manufacturer's requirements.
Not every geyser uses the same anode design, and some tanks may not have a conventional replaceable sacrificial anode. Maintenance requirements will therefore depend on the particular model.
Sediment, mineral deposits and anode residue can accumulate inside a storage geyser. Depending on the condition and design of the tank, our technician may recommend cleaning or flushing to remove accumulated material. Brown or rusty-looking water can have several causes, so we investigate the available evidence rather than automatically assuming that the anode is the only cause.
Safety valves are important for protecting the geyser against excessive pressure and, where applicable, excessive temperature. Our technician checks the accessible safety-valve assembly for visible leakage, deterioration and other signs of a problem. Where required, we recommend repairs or replacement in accordance with the applicable system requirements and manufacturer's instructions. Safety devices must not be bypassed or disabled.
Where vacuum breakers are fitted, we inspect their visible condition and check for signs of leakage, deterioration or malfunction. A defective vacuum breaker may affect the protection of the water installation. If replacement is necessary, our technician will explain the issue and recommend the appropriate component.
We inspect accessible plumbing connections and relevant pressure-control components for signs of leakage, corrosion, damage or incorrect operation. This may include checking the pressure-reducing valve and other installed components where relevant to the system. Where pressure-related problems are identified, we advise on the appropriate corrective work.
Many solar geysers include an electrical element that heats water when solar energy is insufficient or when additional heating is needed. Where fitted, the accessible electrical backup components are checked for visible signs of damage and operational concerns. Any necessary electrical testing or repairs must be carried out by an appropriately qualified person.
The solar collector absorbs sunlight and transfers heat to the water or circulating fluid. Our technician inspects accessible collector surfaces, mounting arrangements and connections for visible damage, deterioration or other concerns. For flat-panel collectors, we pay attention to the general condition of the collector, its mounting and accessible pipe connections.
The pipework connecting the collector and geyser plays an important role in transferring heat. We inspect accessible pipework and insulation for signs of damage, deterioration, leakage or exposure. Damaged insulation can increase heat loss and reduce the overall effectiveness of the system.
The circulation arrangement depends on the type of solar system installed. For thermosyphon systems, we assess the relevant accessible connections and installation components. For pumped systems, maintenance may include checking the circulation pump, associated controls and other accessible components relevant to its operation.
After the appropriate maintenance has been completed, we assess the general operation of the system and identify any concerns that may affect hot water production. Where practical, we check the available operating indicators and review reported issues such as insufficient hot water, unusual noises or unexplained changes in performance.
Heat pump servicing
Heat pumps are designed to transfer heat from the surrounding air into water rather than generating all their heat through direct electrical resistance. When correctly selected, installed and maintained, a heat pump can provide an energy-efficient way to heat domestic hot water. However, its performance depends on factors such as airflow, operating conditions, water circulation, controls and the condition of its mechanical and electrical components.
Our technician inspects the accessible external unit, pipework, mounting arrangements and associated components. We look for visible damage, corrosion, loose connections, signs of leakage and other conditions that may affect the equipment's operation.
Heat pumps rely on airflow across their heat exchanger to transfer heat effectively. Dust, leaves and other debris can restrict airflow and affect performance. We inspect the accessible air intake, discharge area and heat exchanger surfaces. Where necessary, appropriate cleaning is recommended or carried out according to the manufacturer's instructions. Care is taken to avoid damaging delicate heat exchanger fins or other components.
Where accessible, the fan and associated components are inspected for visible damage, obstruction and unusual operating behaviour. Unusual noises or vibration may indicate a developing problem and should be investigated.
Heat pumps contain electrical components and control systems that regulate their operation. Our technician checks accessible components for visible signs of deterioration or damage. Where appropriate, electrical testing is carried out by a suitably qualified person. We also review the system's operating controls and settings where accessible and relevant to the equipment.
We inspect accessible water connections, valves and pipework for leakage, corrosion or deterioration. Poor water circulation or leaking connections can affect system performance and may cause damage if left unattended.
Some heat pump installations include a water circulation pump and a Y-strainer designed to catch debris before it enters sensitive components. If the strainer is blocked, it may restrict water flow and interfere with normal operation. Where required, we clean the strainer and check the accessible components for signs of damage or deterioration.
Accessible isolation valves are inspected for visible corrosion, leakage and general condition. Valves that are severely corroded, leaking or no longer operating correctly may require replacement.
Some heat pump systems produce condensate during operation. Where a condensate drainage arrangement is fitted, we inspect its accessible condition and check for visible blockages, leakage or poor drainage. Correct drainage helps prevent avoidable water accumulation around the equipment.
Heat pumps use a refrigeration circuit to transfer heat. Our maintenance assessment may identify signs of abnormal operation that warrant further investigation. Refrigerant-circuit work, including leak testing, refrigerant recovery, charging or repairs, is not automatically included in a routine service and must be performed by appropriately qualified personnel using the correct equipment and procedures.
We review the system's operating behaviour and assess whether it appears to be heating water as expected under the prevailing conditions. Factors such as ambient temperature, water temperature, system sizing and hot water demand can influence performance. If the heat pump is not reaching the expected temperature or is running unusually, further diagnosis may be necessary.
Unusual sounds, vibration, corrosion and damaged components may indicate that a heat pump needs attention. We inspect for visible signs of these issues and advise on the appropriate action.
Once the applicable maintenance checks are complete, we assess the general condition and operation of the heat pump. We record identified defects and explain any recommended repairs or improvements, so you understand the current condition of your equipment and can address problems before they become more disruptive.
System types
GreaseFlow Solar services different types of solar water heating installations. Every solar system is different, and our technicians assess the installation before determining the appropriate maintenance procedure.
In a close-coupled system, the geyser is mounted above or close to the solar collector, usually on the roof. Water circulates naturally as the heated water rises and cooler water moves down towards the collector. Maintenance focuses on the accessible tank, anode where applicable, valves, pipework, insulation, collector and mounting arrangements.
In a split thermosyphon installation, the geyser is positioned inside the roof space or another suitable location above the outdoor solar collector. The difference in elevation allows natural circulation where the system has been correctly designed and installed. Maintenance includes the accessible geyser components, collector, connecting pipework, insulation and other relevant system parts.
Pumped systems use a circulation pump to move water or heat-transfer fluid through the solar collector. Depending on the system design, maintenance may include checking the pump, controls, circulation arrangements and other relevant components. The applicable checks depend on whether the system uses potable water directly or a separate heat-transfer circuit.
Flat-roof installations may require purpose-designed frames or supports to position the collector and geyser correctly. During maintenance, we inspect accessible mounting arrangements, pipework, insulation, connections and other relevant components. We also look for visible deterioration or installation concerns that could affect the system's reliability.
Service intervals
For many domestic installations, an annual preventative maintenance visit is a practical starting point. However, the ideal service interval depends on the manufacturer's recommendations, the equipment design, water quality, operating conditions and the system's maintenance history.
Some components may require attention more frequently, while others may need replacement only when inspection shows that it is necessary.
Safety note: Where there is a suspected electrical fault, serious leak or other safety concern, the system should be assessed promptly by an appropriate professional.
Our process
At GreaseFlow Solar, we aim to make preventative maintenance straightforward for our customers.
Contact our team to arrange an annual maintenance appointment. We will gather basic information about your property, hot water system and any issues you have noticed.
Our technician assesses the installation and identifies the maintenance requirements based on the system type, condition and manufacturer's recommendations.
We carry out the agreed maintenance tasks, which may include inspections, appropriate cleaning, anode replacement where applicable and checks of relevant accessible components. Additional repairs or replacement parts are discussed with the customer before the work proceeds.
If we discover a leak, corroded valve, deteriorated component or other defect, we explain the finding and recommend the appropriate corrective work. Where a problem requires specialist testing, we will advise you accordingly.
We explain the work completed, highlight any outstanding concerns and provide recommendations for future maintenance. Where appropriate, we record the service date and advise when the next inspection should be considered.
Customers can arrange their next maintenance visit in advance. Our aim is to help you maintain a consistent preventative maintenance routine rather than waiting until a problem interrupts your hot water supply.
The plan
Make preventative maintenance part of your property care routine. Unexpected hot water problems can be inconvenient for homeowners, tenants, landlords and property managers. A planned maintenance arrangement helps you keep track of service dates and gives you an opportunity to identify developing problems before they cause greater disruption.
The exact work included will depend on the equipment, its condition and the agreed service scope. Repairs, major component replacements, additional labour, specialist testing and work outside the agreed maintenance scope may be charged separately. Before the service begins, we will clarify the work to be carried out and any applicable additional costs.
Who it's for
Our preventative maintenance service is suitable for a range of property owners and managers.
Protect your investment and maintain a more reliable hot water supply for your household.
Help maintain the hot water equipment in your rental properties and identify defects that may require attention.
Arrange planned maintenance for suitable individual or shared hot water installations, subject to the system design and agreed scope.
Reduce the risk of avoidable hot water interruptions that can inconvenience guests and disrupt daily operations.
Maintain compatible hot water systems serving offices, staff facilities and other commercial premises.
For larger or more complex installations, we can assess the system and determine an appropriate maintenance scope.
Why GreaseFlow
At GreaseFlow Solar Water Heating, we understand the importance of having a reliable hot water system. Our approach focuses on preventative maintenance, practical technical assessments and clear communication with customers.
Common questions
For many domestic systems, annual maintenance is a sensible starting point. However, the manufacturer's recommendations and the condition of the installation should determine the appropriate service interval.
Where your geyser has a replaceable sacrificial anode, its condition should be assessed. GreaseFlow Solar recommends replacement during the annual service where appropriate and included in the agreed maintenance scope. Some geyser models use different corrosion-protection arrangements, so the correct procedure depends on the particular tank.
Brown water can result from corrosion, a depleted sacrificial anode, sediment or other problems within the plumbing system or water supply. Our technician can investigate the symptoms and inspect the relevant accessible components to help determine the likely cause.
No. Preventative maintenance can help identify signs of deterioration and other developing problems, but it cannot guarantee that a geyser will not leak or that a component will not fail. The condition, age, design and installation of the equipment all influence its reliability.
Maintaining clean airflow, appropriate settings and correct system operation can help a heat pump perform as intended. Actual electricity consumption depends on the unit's efficiency, ambient conditions, hot water demand, temperature settings, installation and other factors. Maintenance does not guarantee a particular saving.
Please confirm the exact service inclusions with GreaseFlow Solar when booking. The quotation should specify whether the anode and other replacement components are included in the price.
We explain the problem and recommend the appropriate corrective work. Any additional repairs or replacement parts outside the agreed service scope are discussed with you before the additional work proceeds.
Yes. We can assess the system and investigate the reported problem. Additional diagnostic work or specialist repairs may be necessary, depending on the cause.
We assess a range of solar water heating configurations, including close-coupled thermosyphon, split thermosyphon and pumped systems. The service we can provide depends on the equipment, its condition and the installation.
Yes. Contact our team to arrange your annual service and discuss a suitable appointment.
Request your maintenance appointment
Regular preventative maintenance can help you identify developing problems, maintain important components and make informed decisions about the condition of your hot water system. Whether you have a solar geyser, a split solar installation or a domestic heat pump, GreaseFlow Solar can help you arrange an appropriate maintenance assessment.
A planned annual visit, inspection of relevant components, anode assessment where applicable, feedback on system condition and clear recommendations for any additional work needed.
If your system is leaking, not heating, or showing warning signs, don't wait for the annual service. Book a repair assessment instead.